:root {
  --brand-dark: #1a1a1a;
  --brand-accent: #b5842e;
  --text-light: #f5f5f0;
  --text-muted: #8a8a8a;
  --bg-page: #ffffff;
  --bg-section: #f7f6f3;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  color: var(--brand-dark);
  background: var(--bg-page);
  line-height: 1.6;
}

header {
  background: var(--brand-dark);
  color: var(--text-light);
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

header .brand {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

header .brand span {
  color: var(--brand-accent);
}

nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

nav a {
  color: var(--text-light);
  text-decoration: none;
  font-size: 0.95rem;
}

nav a:hover { color: var(--brand-accent); }

#lang-toggle {
  background: transparent;
  border: 1px solid var(--text-light);
  color: var(--text-light);
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.85rem;
}

#lang-toggle:hover { border-color: var(--brand-accent); color: var(--brand-accent); }

.hero {
  background: var(--brand-dark);
  color: var(--text-light);
  padding: 80px 24px;
  text-align: center;
}

.hero h1 {
  font-size: 2.2rem;
  margin-bottom: 16px;
}

.hero p {
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 28px;
}

.btn {
  display: inline-block;
  background: var(--brand-accent);
  color: var(--brand-dark);
  padding: 12px 28px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 600;
}

section {
  padding: 60px 24px;
  max-width: 1000px;
  margin: 0 auto;
}

section.alt { background: var(--bg-section); max-width: none; }
section.alt > div { max-width: 1000px; margin: 0 auto; }

h2 {
  font-size: 1.6rem;
  margin-bottom: 24px;
  text-align: center;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.card {
  background: var(--bg-page);
  border: 1px solid #e5e3dd;
  border-radius: 6px;
  overflow: hidden;
}

.card img, .card .placeholder-img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  background: #ddd8cd;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.card-body { padding: 16px; }
.card-body h3 { margin-bottom: 6px; font-size: 1.05rem; }
.card-body p { color: var(--text-muted); font-size: 0.9rem; }

form {
  max-width: 520px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

label { font-size: 0.9rem; font-weight: 600; }

input, textarea {
  padding: 10px 12px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-family: inherit;
  font-size: 0.95rem;
}

textarea { min-height: 120px; resize: vertical; }

button[type="submit"] {
  background: var(--brand-accent);
  border: none;
  color: var(--brand-dark);
  padding: 12px;
  border-radius: 4px;
  font-weight: 700;
  cursor: pointer;
  font-size: 1rem;
}

footer {
  background: var(--brand-dark);
  color: var(--text-muted);
  text-align: center;
  padding: 24px;
  font-size: 0.85rem;
}

[data-i18n] { }
html[data-lang="en"] [data-zh] { display: none; }
html[data-lang="zh"] [data-en] { display: none; }